Engine hour counter for 2 and 4 stroke 2 or 1 cylinder engines

Available 3pc. Sierra tachometer/hour meter with sensor wire for 2/4 gear

For all petrol engines up to 2 cylinders. Shows up to 9000 rpm. Allows hours to be tracked on even the smallest outboards.
Great for 2 or 4 stroke.
Suitable for various vehicles: boats, motorcycles, etc.
Displays RPM when operating hours are off.
No power or grounding required.
Water and shock resistant.
Turns on and off automatically with the engine.
Displays up to 9999 hours.
10 years internal battery life.